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what is sparkplug gap for 15

" Gap your NGK BP8HS-15 plugs

" Gap your NGK BP8HS-15 plugs to 0.060&#34;&#40;1.5mm&#41;. It should be noted that you should not use the same spark plug as the 9.9HP, 8HP or the 6HP models. They take a NGK BP8H-N-10 gapped at 0.040&#34;&#40;1.0mm&#41;. "